radiator leaking, what replacement is everyone using

Fifty · Aug 24, 2024

The radiator on my 2015i 6.2l 4wd 8 speed yukon XL Denali decided to start leaking on the drivers side.

Trying to determine which is the best option to put in and if there are any features I need to be aware of since I think the yukon xl denalis all have the max tow options.

I do offroad this truck so Im hesitant to go with another crimped radiator. Its our camping vehicle. So 40k miles and no issues. 2 campng trips with washboard and bolts loose and radiator leaking...

Doubeleive · Aug 24, 2024

oem will be the most dependable, although not always the cheapest. if it's not a "needs to be done today" thing then you can order one from places like rockauto and save a few bucks

Fifty · Aug 24, 2024

IM finding that I need to see if I have "NHT" in the build sheet or not. There are two different radiators for my year yukon.

I really wish I could find a well built non crimped radiator. But it looks like that wont be the case.
I should probably get new radiator hoses since im in there. I have a new oem thermostat and temp sensor on the shelf since the truck was nearing 10 years old... even with only 45k on the clock

Joseph Garcia · Aug 25, 2024

As you stated, change ALL of the radiator and heater hoses, while you are replacing the radiator, as they are probably original.

Doubeleive · Aug 25, 2024

Fifty said:
IM finding that I need to see if I have "NHT" in the build sheet or not. There are two different radiators for my year yukon.

I really wish I could find a well built non crimped radiator. But it looks like that wont be the case.
I should probably get new radiator hoses since im in there. I have a new oem thermostat and temp sensor on the shelf since the truck was nearing 10 years old... even with only 45k on the clock

a quick look at rockauto only shows one gm oem part number, weird apparently there are some strange changes going on in 2015+
looking at the oem one for my 18 silverado the oil cooler is now on the right side, transmission cooler is a separate piece
but "some" may still have a left side oil cooler and transmission cooler on the right

mjgirard · Aug 25, 2024

While you have the radiator out check the water pump too.
I needed a water pump in February and decided to replace anything associated with the water pump because my Tahoe is a 2001 and it is our trip vehicle. I even replaced the heater connector Ts along with belts, tensioners and the radiator.

Tahoe14 · Aug 26, 2024

Don’t forget your 5% discount code at Rockauto, every little bit helps.

Fifty · Aug 26, 2024

It looks like there are two ports on each side, so an internal engine oil cooler and internal transmission fluid cooler.

Someone recommended the mishimoto radiator. Pricey… $200 more than I can get an oem one for (shipping adds a lot to the oem one)

Seriously debating that…

Doubeleive · Aug 26, 2024

Fifty said:
It looks like there are two ports on each side, so an internal engine oil cooler and internal transmission fluid cooler.

Someone recommended the mishimoto radiator. Pricey… $200 more than I can get an oem one for (shipping adds a lot to the oem one)

Seriously debating that…

those all aluminum ones (all brands) are prone to leaking, usually within a year or two
the reviews don't lie in this regard..... just a heads up.
a few of us have experienced it already, including myself mine lasted less than 3 months and summit refunded my money (once I returned it)

Fifty · Aug 26, 2024

Dang. I have a buddy with an excursion and his is going on 4 years.

Well… I can tig aluminum… if it does leak and it’s somewhere I can fix it.. there is that.

I just pulled the Amazon trigger on it.

radiator leaking, what replacement is everyone using

Fifty

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Fifty

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Joseph Garcia

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Fifty

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